229400240 has 20 divisors (see below), whose sum is σ = 533355744. Its totient is φ = 91760064.

The previous prime is 229400233. The next prime is 229400263. The reversal of 229400240 is 42004922.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×229400240² = 105248940224115200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1433672 + ... + 1433831.

Almost surely, 2^229400240 is an apocalyptic number.

229400240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

229400240 is an abundant number, since it is smaller than the sum of its proper divisors (303955504).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

229400240 is a wasteful number, since it uses less digits than its factorization.

229400240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2867516 (or 2867510 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 229400240 is about 15145.9644790287. The cubic root of 229400240 is about 612.1595409028.

The spelling of 229400240 in words is "two hundred twenty-nine million, four hundred thousand, two hundred forty".